Over 100 million expected to shop on Black Friday as more stores offer early sales: "It has become a really strong day"

Facing potential supply shortages, many retailers started their holiday sales in October and have made Black Friday a weeklong event.

Experts predict a new record in spending over the holiday season. More than 108 million people plan to shop in stores or online on Black Friday, according to the National Retail Federation.

Stores across the country were greeted with lines of eager shoppers looking for the best Black Friday deals.